Enhance your control circuits with the ABB CAL4-11 Auxiliary Contact Block. Designed for standard industrial environments, this 2-pole block features instantaneous Normally Open (NO) and Normally Closed (NC) contacts. It is ideal for side mounting onto ABB AF Contactors, providing reliable auxiliary circuit operation. The screw terminals are delivered open and protected against accidental direct contact, ensuring safe and efficient installation..The ABB CAL4-11 is a 2-pole auxiliary contact block with instantaneous NO and NC contacts. It is designed for side mounting on AF Contactors and operates within an auxiliary circuit voltage range of 24 to 690 volts. The block has a conventional free-air thermal current (Ith) of 16 amperes and a rated insulation voltage (Ui) of up to 690 volts. It supports a maximum mechanical switching frequency of 3600 cycles per hour and a maximum electrical switching frequency of 1200 cycles per hour for AC-15 and 900 cycles per hour for DC-13. The rated operational voltage for the auxiliary circuit is 24 to 690 volts, with a rated frequency of 50/60 Hz. The rated short-time withstand current (Icw) is 140 amperes for 0.1 seconds and 100 amperes for 1 second. It utilizes screw terminals.